/Engine/Plugins/Enterprise/DatasmithContent/Source/DatasmithContent/Public/DatasmithAssetUserData.h
Meta-data are available at runtime in game, i.e. used in blueprint to display build-boarded information.
typedef [TMap](API\Runtime\Core\Containers\TMap)< [FName](API\Runtime\Core\UObject\FName), [FString](API\Runtime\Core\Containers\FString) > FMetaDataContainer